ISC BIND 9.10.5-S1 < 9.11.5-S6 Assertion Failure Vulnerability

high Nessus Plugin ID 124562


The remote name server is affected by an assertion failure vulnerability.


ISC BIND versions 9.11.5-S5 and earlier are affected by an error in the nxdomain-redirect feature in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure.


Upgrade to ISC BIND version 9.11.6-S5, 9.11.6-S1, or later.

See Also

Plugin Details

Severity: High

ID: 124562

File Name: bind9_CVE-2019-6468.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 5/3/2019

Updated: 5/22/2020

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2019-6468


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 4/24/2019

Vulnerability Publication Date: 4/24/2019

Reference Information

CVE: CVE-2019-6468

BID: 108070

IAVA: 2019-A-0139-S